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. I LATHE TOOL HOLDER. No. 74,877. Patented Feb. 25, 1 868.

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JOHN BAILLI E, 0F SALEM, OHIO.

Letters Patent No. 74,877, dated February 25, 1868.

IMPROVEMENT IN LATHE-TOOL HOLDEB.

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TO ALL WHOM IT MAY CONdERN:

, Be it known that I, JOHN BAILLIE, of Salem, in the county of Colombians, and in the State otlOhio, have invented certain new and useful Improvements in Tools and Bearing for Lathes; and do hereby declare that the following is a full, clear, and exact description thereof, reference being hadto the accompanying drawings, arid the letters of reference marked thereon.

In the annexed drawings, making a part of this specification, 3n ordinary cutting-tool for lathes, the shanks of which are made octsgonah'but may be of any desired shape and size. B represents a metallic loop or clasp, provided with slots, :cfin the sides thereof, and a thumb-screw, D, in the top. 0 C represent metallic bars orholders, each provided with an angular groove in the side, which 'come together, for the purpose of clasping the tool A, and holding the same firm between them, as a socket therefor. Qne of the holders 0 is rigidly secured to the bottom of the clasp B, and the other fits between the sides thereof, and is held there, and woi-ks up and down by means of a pin, a, working in the slot '1, It will be seen that by loosening the thumb-screw D, the holdersC C are loosened on the shank of the tool A, which may A represents an ordinary side-cutter, and A then be removed, and another inserted, of 'the same or difi'erent size, and then, by means of the snid thumb ecrew, the holders C G are again pressed togetheragainst the tool, and hold it, as before stated. This device may be secured in any manner most convenient, to a tool-post of a lathe of any description. v Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is The holders 0 0, when used in combination with the slotted clasp B and thumb-screw D, substantially as and for the purpose herein set forth. i

In testimony that claim the foregoing, I have hereunto set my hand, this 27th day of December, 1867.

JOHN BAILLIE.

Witnesses:

R. H. Gssnrenss, CHAS. H. Gsmuenss. 

